AP Biology Unit 2 Review part 2

Front

What type of receptor does epinephrine target?

Back

GPCR (G protein-coupled receptor)

Front

What is a key piece of evidence supporting the endosymbiotic theory?

Back

Mitochondria and chloroplasts have their own DNA, which is similar to prokaryotic DNA.

Front

What is the prokaryotic strategy for increasing surface area?

Back

To be smaller so that surface area increases.

Front

Which type of heart is most efficient at creating a solute gradient in the blood?

Back

4 chambered hearts of birds.

Front

Is a slug an osmoconformer or an osmoregulator?

Back

Osmoregulator.

Front

Define GPCR.

Back

GPCR stands for G protein-coupled receptor, a large family of cell surface receptors that respond to various external signals.

Front

What is the endosymbiotic theory?

Back

The theory that certain organelles, like mitochondria and chloroplasts, originated as free-living prokaryotes that were taken up by a host cell.

Front

Why are smaller cells more efficient in terms of surface area to volume ratio?

Back

Smaller cells have a higher surface area to volume ratio, allowing for more efficient nutrient uptake and waste removal.

Front

What is the function of a 4 chambered heart?

Back

It separates oxygenated and deoxygenated blood, allowing for more efficient oxygen delivery to tissues.

Front

What is an osmoconformer?

Back

An osmoconformer is an organism that maintains an internal environment that is isotonic to its external environment.